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A model for studying Alzheimer's Abeta42-induced toxicity in Drosophila melanogaster.

Finelli, Alyce and Kelkar, Anju and Song, Ho-Juhn and Yang, Haidi and Konsolaki, Mary (2004) A model for studying Alzheimer's Abeta42-induced toxicity in Drosophila melanogaster. Molecular and Cellular Neurosciences, 26 (3). pp. 365-375. ISSN 1044-7431

Abstract

Alzheimer's disease is a neurological disorder resulting in the degeneration and death of brain neurons controlling memory, cognition and behavior. Although overproduction of Abeta peptides is widely considered a causative event in the disease, the mechanisms by which Abeta peptides cause neurodegeneration and the processes of Abeta clearance and degradation remain unclear. To address these issues, we have expressed the Abeta peptides in Drosophila melanogaster. We show that overexpression of Abeta42 peptides in the nervous system results in phenotypes associated with neuronal degeneration in a dose- and age-dependent manner. We further show that a mutation in a Drosophila neprilysin gene suppresses the Abeta42 phenotypes by lowering the levels of the Abeta42 peptide, supporting the role of neprilysin in the catabolism of Abeta peptides in vivo. We propose that our Drosophila model is suitable for the study and elucidation of Abeta metabolism and toxicity at the genetic level.

Item Type: Article
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Additional Information: author can archive post-print (ie final draft post-refereeing); Publisher's version/PDF cannot be used
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Date Deposited: 14 Dec 2009 13:55
Last Modified: 14 Dec 2009 13:55
URI: https://oak.novartis.com/id/eprint/746

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